diff --git a/diff.c b/diff.c
index c30c252272..699b21f4e3 100644
--- a/diff.c
+++ b/diff.c
@@ -1199,7 +1199,7 @@ static struct builtin_funcname_pattern {
 			"new\\|return\\|switch\\|throw\\|while\\)\n"
 			"^[ 	]*\\(\\([ 	]*"
 			"[A-Za-z_][A-Za-z_0-9]*\\)\\{2,\\}"
-			"[ 	]*([^;]*$\\)" },
+			"[ 	]*([^;]*\\)$" },
 	{ "tex", "^\\(\\\\\\(sub\\)*section{.*\\)$" },
 };